Box Gutter Sump Overflow

This effectively states that all box gutters must allow for 30mm of freeboard which is from the overflow point eg.

Box gutter sump overflow.

A wider overflow needs less depth of overflow hence the box gutter depth will also be reduced. The box gutter depth and the sump length are influenced by the size of the overflow. All domestic box gutters must be a minimum of 200mm wide and 75mm deep. The side with the maximum flow is used to size the box gutter.

However a wider overflow may increase the length of the sump. Eshopps is the leading manufacturer company that specializes in aquarium filtration in the salt water industry. Making the box gutter wider will also reduce the box gutter depth. However by definition to have a sump somewhere along the gutter implies that there will be flow approaching the sump from two sides.

2015 3 7 4 layout. Overflow devices consider whether the discharge of the box gutter is to. A a rainhead b a sump with a side overflow device. Our brand is best known for manufacturing high quality line of acrylic sumps like wet dry filters reef sumps refugiums and protein skimmers.

Rainhead overflow or specific box gutter overflow must be at least 30mm below the height of the back of the box gutter. The total flow is used to size the sump and overflow. It is not necessary to use all quadrants or use vertical faces. Overflows in box gutter this has become a big issue in the past 18 months particularly in victoria and is outlined in a new section in the current update to the ncc.